PMID- 21645118 OWN - NLM STAT- MEDLINE DCOM- 20120105 LR - 20110916 IS - 1399-3038 (Electronic) IS - 0905-6157 (Linking) VI - 22 IP - 6 DP - 2011 Sep TI - Educational case series: Mechanisms of drug allergy. PG - 559-67 LID - 10.1111/j.1399-3038.2011.01183.x [doi] AB - Once administered, a drug can activate the immune system by various mechanisms and lead to a large range of clinical manifestations closely related to the type of immune reaction elicited. Administration of the drug can classically result in an immunoglobulin E (IgE)-type sensitization, but can also result in more complex activation of the immune system potentially resulting in severe syndromes, such as the drug-induced hypersensitivity syndrome (DIHS). Although there has been a major increase in our knowledge over the last years, the exact mechanisms of drug allergy are not well understood for most clinical manifestations. A complex interaction between individual characteristics, environmental factors, and the drug itself is usually responsible for adverse reactions to drugs. In this educational review series, we described three cases of drug allergy: first, a child with a typical IgE-mediated drug allergy, second, a child with a non-immediate reaction to penicillin, and in the third patient, we will discuss the drug-induced hypersensitivity syndrome, which is rare but potentially fatal. These cases are correlated to the immune mechanism potentially involved. CI - (c) 2011 John Wiley & Sons A/S. FAU - Caubet, Jean-Christoph AU - Caubet JC AD - Department of Child and Adolescent, University Hospitals of Geneva and Medical School of the University of Geneva, Geneva, Switzerland. FAU - Pichler, Werner J AU - Pichler WJ FAU - Eigenmann, Philippe A AU - Eigenmann PA LA - eng PT - Case Reports PT - Journal Article PT - Review DEP - 20110606 PL - England TA - Pediatr Allergy Immunol JT - Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology JID - 9106718 SB - IM MH - Child MH - Child, Preschool MH - Drug Hypersensitivity/*immunology MH - Female MH - Humans MH - Infant MH - Male EDAT- 2011/06/08 06:00 MHDA- 2012/01/06 06:00 CRDT- 2011/06/08 06:00 PHST- 2011/06/08 06:00 [entrez] PHST- 2011/06/08 06:00 [pubmed] PHST- 2012/01/06 06:00 [medline] AID - 10.1111/j.1399-3038.2011.01183.x [doi] PST - ppublish SO - Pediatr Allergy Immunol. 2011 Sep;22(6):559-67. doi: 10.1111/j.1399-3038.2011.01183.x. Epub 2011 Jun 6.